Airthium

Airthium makes low cost, zero emission, 30kW+ Thermodynamic energy storage systems, as well as high efficiency diesel generators

Airthium store solar and wind energy on site and above ground, using MW-scale thermodynamic energy storage modules. Airthium use electricity to power a heat pump and store heat at 500°C (932°F) in low cost materials. The heat pump then becomes a heat engine to convert the heat back into electricity when it's needed.